I don't see any listing of rationality houses or people looking for apartments there.
But there space where you could put that information. There no need to have a new feature. The Wiki feature is perfectly fine to store information about rationality houses.
There no need to ask for permission to create a Wiki page that lists that kind of information.
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.